If the number of bacteria in a colony doubles every 45 hours and there is currently a population of 500,000 bacteria, what will the population be 180 hours from now?

A collection of 30 coins worth $5.50 consists of nickels, dimes and quarters. There are twice as many dimes as nickels. How many quarters are there?

The length of a rectangle is 7cm less than twice it's width. If the area is 30 sq. cm, find the dimensions

Fiona bought p pens for $1.19 each. write an expression for the cost of all the pens

Mary can buy 12 oranges at store A for $3.84 and 15 oranges for $5.00 at store B. Which store has the better unit cost?

Evaluate the expression when p = 9.3 and q = - 2.1. p - 3q a. 15.6 b. 3.0 c. - 13.2 d. - 15.6 My answer is D

The tax rate as a percent, r, charged on an item can be determined using the formula 100 ( - 1) = r, where c is the final cost of the item and p is the price of the item before tax.

A sea turtle made 460 dives in 12 hours. At this rate, how many dives did the sea turtle make in 3 hours?

The library is having a contest to guess the number of candy pieces of candy in a jar. Johns guess of three times the number of candy pieces in the jar increased by 100 is lower than Keisha's guess of 250 less than twice the number of candy pieces.

A roller coaster carries riders up a ramp that is 39 meters long

A $750 television is on sale for 30% off. There is a 7% sales on the television. How much do you pay?